<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			* {
				padding: 0px;
				margin: 0px;
				box-sizing: border-box;
			}
			
			.left-side {
				float: left;
				width: 200px;
				height: 100vh;
				background-color: yellow;
			}
			
			.right-section {
				float: left;
				width: calc(100% - 200px);
				height: 100vh;
				background-color: aqua;
			}
		</style>
	</head>
	<body>
		<aside class="left-side"></aside>
		<section class="right-section">
		</section>
	</body>
</html>